mirror of
https://github.com/dashpay/dash.git
synced 2024-12-26 20:42:59 +01:00
71e38b9ebc
effe81f750 Move g_is_mempool_loaded into CTxMemPool::m_is_loaded (Ben Woosley) bb8ae2c419 rpc: Expose g_is_mempool_loaded via getmempoolinfo and /rest/mempool/info.json (Ben Woosley) Pull request description: And use it to fix a race condition in mempool_persist.py: https://travis-ci.org/Empact/bitcoin/jobs/487577243 Since e.g. getrawmempool returns errors based on this status, this enables users to test it for readiness. Fixes #12863 ACKs for commit effe81: MarcoFalke: utACK effe81f750 jnewbery: utACK effe81f7503d2ca3c88cfdea687f9f997f353e0d Tree-SHA512: 74328b0c17a97efb8a000d4ee49b9a673c2b6dde7ea30c43a6a2eff961a233351c9471f9a42344412135786c02bdf2ee1b2526651bb8fed68bd94d2120c4ef86
137 lines
6.4 KiB
Python
Executable File
137 lines
6.4 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2014-2017 The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
"""Test mempool persistence.
|
|
|
|
By default, dashd will dump mempool on shutdown and
|
|
then reload it on startup. This can be overridden with
|
|
the -persistmempool=0 command line option.
|
|
|
|
Test is as follows:
|
|
|
|
- start node0, node1 and node2. node1 has -persistmempool=0
|
|
- create 5 transactions on node2 to its own address. Note that these
|
|
are not sent to node0 or node1 addresses because we don't want
|
|
them to be saved in the wallet.
|
|
- check that node0 and node1 have 5 transactions in their mempools
|
|
- shutdown all nodes.
|
|
- startup node0. Verify that it still has 5 transactions
|
|
in its mempool. Shutdown node0. This tests that by default the
|
|
mempool is persistent.
|
|
- startup node1. Verify that its mempool is empty. Shutdown node1.
|
|
This tests that with -persistmempool=0, the mempool is not
|
|
dumped to disk when the node is shut down.
|
|
- Restart node0 with -persistmempool=0. Verify that its mempool is
|
|
empty. Shutdown node0. This tests that with -persistmempool=0,
|
|
the mempool is not loaded from disk on start up.
|
|
- Restart node0 with -persistmempool. Verify that it has 5
|
|
transactions in its mempool. This tests that -persistmempool=0
|
|
does not overwrite a previously valid mempool stored on disk.
|
|
- Remove node0 mempool.dat and verify savemempool RPC recreates it
|
|
and verify that node1 can load it and has 5 transactions in its
|
|
mempool.
|
|
- Verify that savemempool throws when the RPC is called if
|
|
node1 can't write to disk.
|
|
|
|
"""
|
|
from decimal import Decimal
|
|
import os
|
|
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal, assert_raises_rpc_error, wait_until
|
|
|
|
|
|
class MempoolPersistTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 3
|
|
self.extra_args = [[], ["-persistmempool=0"], []]
|
|
|
|
def skip_test_if_missing_module(self):
|
|
self.skip_if_no_wallet()
|
|
|
|
def run_test(self):
|
|
chain_height = self.nodes[0].getblockcount()
|
|
assert_equal(chain_height, 200)
|
|
|
|
self.log.debug("Mine a single block to get out of IBD")
|
|
self.nodes[0].generate(1)
|
|
self.sync_all()
|
|
|
|
self.log.debug("Send 5 transactions from node2 (to its own address)")
|
|
for i in range(5):
|
|
last_txid = self.nodes[2].sendtoaddress(self.nodes[2].getnewaddress(), Decimal("10"))
|
|
node2_balance = self.nodes[2].getbalance()
|
|
self.sync_all()
|
|
|
|
self.log.debug("Verify that node0 and node1 have 5 transactions in their mempools")
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 5)
|
|
assert_equal(len(self.nodes[1].getrawmempool()), 5)
|
|
|
|
self.log.debug("Prioritize a transaction on node0")
|
|
fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
|
|
assert_equal(fees['base'], fees['modified'])
|
|
self.nodes[0].prioritisetransaction(txid=last_txid, fee_delta=1000)
|
|
fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
|
|
assert_equal(fees['base'] + Decimal('0.00001000'), fees['modified'])
|
|
|
|
self.log.debug("Stop-start the nodes. Verify that node0 has the transactions in its mempool and node1 does not. Verify that node2 calculates its balance correctly after loading wallet transactions.")
|
|
self.stop_nodes()
|
|
# Give this node a head-start, so we can be "extra-sure" that it didn't load anything later
|
|
# Also don't store the mempool, to keep the datadir clean
|
|
self.start_node(1, extra_args=["-persistmempool=0"])
|
|
self.start_node(0)
|
|
self.start_node(2)
|
|
wait_until(lambda: self.nodes[0].getmempoolinfo()["loaded"], timeout=1)
|
|
wait_until(lambda: self.nodes[2].getmempoolinfo()["loaded"], timeout=1)
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 5)
|
|
assert_equal(len(self.nodes[2].getrawmempool()), 5)
|
|
# The others have loaded their mempool. If node_1 loaded anything, we'd probably notice by now:
|
|
assert_equal(len(self.nodes[1].getrawmempool()), 0)
|
|
|
|
self.log.debug('Verify prioritization is loaded correctly')
|
|
fees = self.nodes[0].getmempoolentry(txid=last_txid)['fees']
|
|
assert_equal(fees['base'] + Decimal('0.00001000'), fees['modified'])
|
|
|
|
# Verify accounting of mempool transactions after restart is correct
|
|
self.nodes[2].syncwithvalidationinterfacequeue() # Flush mempool to wallet
|
|
assert_equal(node2_balance, self.nodes[2].getbalance())
|
|
|
|
self.log.debug("Stop-start node0 with -persistmempool=0. Verify that it doesn't load its mempool.dat file.")
|
|
self.stop_nodes()
|
|
self.start_node(0, extra_args=["-persistmempool=0"])
|
|
wait_until(lambda: self.nodes[0].getmempoolinfo()["loaded"])
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 0)
|
|
|
|
self.log.debug("Stop-start node0. Verify that it has the transactions in its mempool.")
|
|
self.stop_nodes()
|
|
self.start_node(0)
|
|
wait_until(lambda: self.nodes[0].getmempoolinfo()["loaded"])
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 5)
|
|
|
|
mempooldat0 = os.path.join(self.nodes[0].datadir, self.chain, 'mempool.dat')
|
|
mempooldat1 = os.path.join(self.nodes[1].datadir, self.chain, 'mempool.dat')
|
|
self.log.debug("Remove the mempool.dat file. Verify that savemempool to disk via RPC re-creates it")
|
|
os.remove(mempooldat0)
|
|
self.nodes[0].savemempool()
|
|
assert os.path.isfile(mempooldat0)
|
|
|
|
self.log.debug("Stop nodes, make node1 use mempool.dat from node0. Verify it has 5 transactions")
|
|
os.rename(mempooldat0, mempooldat1)
|
|
self.stop_nodes()
|
|
self.start_node(1, extra_args=[])
|
|
wait_until(lambda: self.nodes[1].getmempoolinfo()["loaded"])
|
|
assert_equal(len(self.nodes[1].getrawmempool()), 5)
|
|
|
|
self.log.debug("Prevent dashd from writing mempool.dat to disk. Verify that `savemempool` fails")
|
|
# to test the exception we are creating a tmp folder called mempool.dat.new
|
|
# which is an implementation detail that could change and break this test
|
|
mempooldotnew1 = mempooldat1 + '.new'
|
|
os.mkdir(mempooldotnew1)
|
|
assert_raises_rpc_error(-1, "Unable to dump mempool to disk", self.nodes[1].savemempool)
|
|
os.rmdir(mempooldotnew1)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
MempoolPersistTest().main()
|